Supporting bracket for windows



March 12, 1957 A. w. ANDERBERG ET AL 2,784,45

SUPPORTING BRACKET FOR wmnows Filed Feb. 21, 1955 2 Sheets-Sheet 1 27 .II my. KW L la -27 5 v5 I V Q INVENTOR-S 5 Axfl wn/voaeaaes g-0w: A740202 March 12, 1957 A. w. ANDERBERG ET AL ,73 ,4

SUPPORTING BRACKET FOR WINDOWS Filed Feb. 21., 1955 2 Sheets-Sheet 2I; 1) I 3 .1; 2 4 9, /0 2/" 1 q 47' ra /V516 United States PatentSUPPORTING BRACKET FOR WINDOWS Axel W. Anderherg and George A. Taylor,Los Angeles, Galifl, nssignors to A. W. Anderberg Manufacturing (10.,Los Angeles, Calif., a corporation of California Application February21, 1955, Serial No. 489,624

15 Claims. (CI. 20-42) Our invention relates to supporting brackets forwindows, more particularly to brackets which are arranged to support awindow for pivotal movement about either a verticalor a horizontal axis;and which are also arranged so that the pivotal axis of the window movesto and from the window frame so that when the window is open bothsurfaces are accessible from the inner side of the window frame.

Included in the objects of our invention are:

First, to provide a supporting bracket for windows which incorporates anovel, pivotal linkage means so arranged that the margin of the windowadjacent the pivotal axis of the bracket moves outwardly from the windowframe as the window is opened, so as to clear the window frame and inparticular eliminate the necessity of notching or otherwise relievingthe window sash at its outer side.

Second, to provide a supporting bracket for windows which incorporates anovel cam means arranged to draw the pivoted margin of: the window sashtightly against the window frame.

Third, to provide a supporting bracket for windows which is operable ineither a left or right position so that a pair of identical brackets maybe employed to support a window, and wherein the cam means is operablein either position of the bracket.

Fourth, to provide a supporting bracket for windows which incorporates anovel, easily adjusted, friction slide to hold the window in position.

With the above and other objects in view, as may appear hereinafter,reference is directed to the accompanying drawings in which:

Figure l is an elevational view of a typical metal window frame andWindow sash arranged to utilize our window supporting brackets;

Fig.- 2 is an enlarged, fragmentary, sectional view through 2--2 of Fig.l with our supporting brackets in end elevation;

Fig. 3 is an enlarged, fragmentary, top view of the window frame andsash, indicating by dotted lines the position of the upper supportingbracket, the view being taken along the line 3-3 of Fig. 1;

Fig. 4 is an enlarged, fragmentary, sectional view through 4-4 of Fig. lwith the lower supporting bracket shown in elevation;

Fig. 5 is a further enlarged, fragmentary, sectional view through 55 ofFig. 1, illustrating the manner in which the lower supporting bracket isoperative to draw the window sash against the window frame when thewindow is in its closed position;

Fig. 6 is a similar fragmentary sectional view through 6-6 of Fig. 1,showing the corresponding operation of the upper supporting bracket;

Fig. 7 is a fragmentary sectional view in the same plane as Fig. 5,showing the window sash in its partially open position and indicatingdiagrammatically the path of the link member which determines themovement of the pivoted side of the window sash;

Fig. 8 is a further enlarged, longitudinal, sectional view, takenthrough 8-8 of Fig. 4;

Fig. 9 is a fragmentary perspective view of the track and slide memberwith the track partially broken away;

Fig. 10 is a perspective view of the friction member and its leaf springemployed in the slide; and

Fig. ll is a sectional view similar to Fig. 2, but show ing thesupporting bracket mounted in a wooden frame and sash.

Our supporting bracket for windows is adapted to be employed for thesupport of casement type windows or transom type windows, that is, forthe support of windows to permit their pivotal movement about a verticalaxis or a horizontal axis, and is adapted to be connected between aconventional window frame and window sash, whether these structures beformed of metal or wood. For convenience of illustration our supportingbracket is shown as employed to support a conventional metal window sashA relative to a conventional metal window frame is.

The window sash A and window frame B are formed of members which areidentical in cross-section. ln practice they are formed from extrusionsin the form of l beams having webs C with extended outer lips D andextended inner lips E, so that when the window sash is fitted within thewindow frame the outer lip of. the window sash bears against thecorresponding margin of the window frame, and the inner lip of thewindow frame is engaged by the adjacent margin of the window sash. Thewebs C are separated from each other to form an accommodation space inwhich is mounted our supporting bracket. A pair of brackets areemployed, one at the top and one at the bottom in the case of avertically hung window, or one at either side in the case of ahorizontally hung window.

Each of our supporting brackets includes a track member 1 having foldedside flanges 2. The track member is secured to the web C of the windowframe B with one end of the track member adjacent a corner of the windowframe. The track member is secured in place by screws 3.

Mounted on the track member 1 is a slide 4 having side flanges 5 whichfit under and are retained by the side flanges 2. The slide is providedwith a shallow raised portion 6 forming a cavity confronting the track1.

Mounted within the cavity or raised portion 6 is a friction shoe 7. Thefriction shoe is backed by a leaf spring 8, the tension of which iscontrolled by a set screw 9 directed through the wall of the slide 4.The extremities of the shoe 7 are provided with pivot pins 10 and 11.

The friction shoe 7 is slidable between the end of the track member 1,adjacent the corner of the window frame B, and a position near theopposite or extended end, at which point there is provided a stop 12.Beyond the stop 12 the track member 1. is provided with a raised boss 13extending to a level flush with the upper surfaces of the side flanges2. The boss 13 is provided with a pivot pin 14.

Secured to the confronting web C of the window sash A by screws 15 is afiat bar 16. When the window sash A is in its closed position within thewindow frame B. the bar 16 overlies or confronts the track 1 vsith oneend adjacent the end of the track disposed in the corner of the windowframe. At this end of the bar 16 there is mounted a pivot pin 17.

A short link 18 is pivotally connected between the pivot pin 17 and thepivot pin 10 of the slide 4. The intermediate portion of the link 18 isprovided with a clearance offset 19 to clear the head of one of thescrews 15.

The bar 16 is provided with a second pivot pin 20. A strut 21 extendsbetween the pivot pin 20 and the pivot pin 17 at the remote end of thetrack 1. The pivot pin 20 is so located that when the bar 16 is insuperposed relation with the track 1 the strut 21 is in- 3 terposedbetween the track 1 and bar 16 and is in approximate alignment With thebar 16. This is likewise true of the link 18.

A portion of the strut 21 is offset upwardly as indicated by 22. Withinthe length of the upwardly offset portion is a pivot pin 23. A brace 24extends between the pivot pin 23 and the pivot pin 11 of the slide 4.The location of the pivot pins 23 and 11 and the length of the brace 24is such that when the bar 16 is in its superposed or confrontingposition relative to the track member 1 the brace 24 extends along thetrack in approximate alignment with the bar 16 and strut 21.

In actual practice it is not desirable that the axes of the variouspivot pins be in strict alignment, that is, the bar 16 is intended tooccupy a position parallel to, but laterally offset from, the medianline of the track 1, and is capable of occupying either one of two suchoffset positions. This enables the supporting bracket to be mounted ateither end of a window frame and sash without requiring the manufactureof right and left pairs. This is indicated best in Fig. 2 and in Figs.and 6. By disposing the bar 16 in a laterally offset position, thevarious pivotal axes are offset suificiently that the bar moves freelyand easily from its offset superposed position to its various angularpositions.

It is desirable that the outer lips D of the window sash A fit tightlyagainst the window frame B when the Window sash is closed. This isaccomplished by a cam member 25 secured to the end of the track 1adjacent the corner of the window frame B. The cam member includes atongue 26, which is spot welded or otherwise secured to the track 1, andupright angularly related cam faces 27 defining a truncated V. Thecorresponding end of the bar 16 is pointed, as indicated by 28, so thatas the bar 16 moves into its superposed position relative to the trackthe pointed end 28 engages a corresponding cam face 27 and draws theadjacent lip D tightly against the window frame B, as shown in Figs. 5and 6. It will be noted that the cam faces 27 are spaced sufficientlyfar apart that the bar 16 may occupy either of its lateral positions.

In mounting the supporting bracket in a wooden window structurecomprising a window frame F and a window sash G, as shown in Fig. 11, itis merely necessary to provide an appropriate clearance notch H alongthe inner side of the window sash. The usual stop I, forming a part ofthe conventional window frame B, completely covers the notch H so thatwhen the window is closed the supporting bracket is completelyconcealed, as is also the case when the supporting bracket is used inconjunction with a metal window frame as will be observed from Fig. 2.

Operation of our supporting bracket for windows is as follows:

The tracks 1 are secured within the window frame B so that the cammember 25 abuts opposite corners thereof. The bars 16 are fastened tothe window sash A in such a manner that they are offset either side ofthe median line of the track, as shown in Figs. 2, 4, 5, and 6, the bars16 being so located that when their pointed ends 28 engage thecorresponding cam faces 27 the outer lip D of the window sash is heldtightly against the window frame B.

The link 18 is caused to swing outwardly rather abruptly during thefirst few degrees of movement, as indicated by the broken line X in Fig.7, which represents the path of movement of the pin 17. This causes thecorresponding margin of the window sash A to be defiected laterally fromthe window frame B so that the overhanging outer lip D swings clear,avoiding any need of notching or otherwise mutilating the lip orimpairing its sealing connection with the window frame when the windowsash is closed.

Outward movement of the window sash A causes the strut 21 and brace 24to draw the slide 4 along the track 1 so as to move the pivoted marginof the window away from the corresponding margin of the window frame B.Consequently, when the window is in its fully open position one canreach between the pivoted margin of the window sash and the frame forthe purpose of engaging the normally outer side of the window, thusfacilitating the cleaning of the window. By adjustment of the set screw9 the amount of force required to move the window may be adjusted.

Identical supporting brackets may be employed at each end of the windowmerely by shifting the bar 16 to either side of center to predeterminewhich side of the track 1 the bar and associated connecting members areto move.

Having fully described our invention, it is to be understood that we donot wish to be limited to the details herein set forth, but ourinvention is of the full scope of the appended claims.

We claim:

1. A supporting bracket, comprising: a track; a slide movable along saidtrack; a bar; a strut pivotally connected between said track and barpermitting movement of said bar between a position confronting saidtrack and an angular position; a brace operatively connected with saidstrut and slide to cause movement of said slide along said track as saidbar is moved between its confronting and angular positions; and a linkoperatively connected between an end of said bar and said slide to causesaid end to describe a path directed away from said track as said bar ismoved from its confronting position to its angular position.

2. A supporting bracket as set forth in claim 1, wherein: the end ofsaid bar connected to said link and the corresponding end of said trackare provided with coacting cam means operable to guide said bar intoconfronting relation with said track.

3. A sup-porting bracket as set forth in claim 1, wherein: the severalpivotal connections are capable of passing through a common planecentered along said track whereby said bar is laterally displaceable toeither side of said plane, to predetermine the side of said track fromwhich said bar may move to its angular position.

4. A supporting bracket for effecting angular movement of a window sashrelative to a window frame, comprising: a track adapted to be secured insaid frame; a bar adapted to be secured on said sash in confrontingrelation to said track when said sash is in its closed position relativeto said frame; means pivotally connected between said track and bar toeffect angular displacement of said sash; and means including a slidemovable along said track and a link pivotally connected between saidslide and bar to displace the pivotal axis of said bar and said sashalong a path generally longitudinal to, but arching outwardly from, saidtrack.

5. A supporting bracket for effecting angular movement of a window sashrelative to a window frame, comprising: a track adapted to be secured insaid window frame with one end adjacent a corner thereof; a bar adaptedto be secured to said sash frame with one end adjacent said corner ofthe window frame and disposed in confronting relation with said trackwhen said window sash is closed in said window frame; a slide movablealong said track; a strut pivotally connected to said track at its endremote from said corner and pivotally connected to said bar; a bracepivotally connected to said strut and to said slide; and a linkpivotally connected to said slide and to the end of said bar adjacentsaid corner; said brace being adapted to draw said slide along saidtrack as said bar is moved and said window sash is moved angularlyrelative to said window frame, and said link adapted to thrust said barand adjacent end of said window sash away from said window frame as saidslide is drawn along said track.

6. A supporting bracket as set forth in claim 5, wherein: the end ofsaid bar connected to said link and the corresponding end of said trackare provided with coacting cam means operable to guide said bar intoconfronting relation with said track.

7. A supporting bracket as set forth in claim 5, wherein: the severalpivotal connections are capable of passing through a common planecentered along said track whereby said bar is laterally displaceable toeither side of said plane, to predetermine the side of said track fromwhich said bar may move to its angular position.

8. A supporting bracket for effecting angular movement of a window sashrelative to a window frame, comprising: a track adapted to be secured insaid window frame with one end adjacent a corner thereof; a strutadapted to be pivotally connected between said window sash and saidwindow frame and movable between a position interposed between saidwindow sash and window frame when said window sash and window frame areclosed, and into an angular position when said window sash and windowframe are in angular reation; a slide movable along said track; a bracepivotally con nected to said strut and to said slide for mov ing saidslide along said track as said window sash is moved between its closedand open positions; and a link pivotally connected between said slideand a corner of said window sash adjacent said corner of the windowframe and operable to move said corner of the window sash outwardly fromsaid window frame during initial angular movement of said window sash.

9. A supporting bracket for effecting angular movement of a window sashrelative to a window frame, comprising: a track adapted to be secured insaid window frame with one end adjacent a corner thereof; a slidemovable along said track; a link pivotally connected between said slideand said window sash at a corner corresponding to said window framecorner; and other linkage means between said track, said slide, and saidwindow sash cooperating with said link to move said window sash betweena closed position within said window frame and an angular open position,said linkage means being operable to move said slide along said track tocause the pivoted connection between said link and window sash to movein an arched path outwardly from said window frame.

10. A supporting bracket as set forth in claim 9, wherein: coacting camelements are adapted to be disposed adjacent said corresponding cornersof said window frame and window sash for drawing said corner of thewindow sash into said window frame as said window sash is moved to itsclosed position.

11. A supporting bracket comprising: a track; a slide movable along saidtrack; a link member pivotally connected to said slide and movablebetween a position longitudinally of said track directed toward one endthereof and an angular position either side thereof; a brace memberpivotally connected to said slide and movable between a positionlongitudinally of said track directed toward the other end of the trackand an angular position either side thereof; a strut member pivotallyconnected to said track at said other end and movable between a positionoverlying said brace and an angular position either side of said track,said strut member be ing pivotally connected to said brace; a bar memberpivotally connected to said link member and said strut member andmovable between a position longitudinally of said track and an angularposition either side thereof; the several pivotal connections betweensaid members adapted to define a common plane when said members extendlongitudinally of said track, said bar member adapted to be displacedlaterally offset either side of said plane to predetermine the directionof angular movement of said members, said link member adapted to swingits connection with said bar member laterally from said track, and saidbrace member adapted to draw said slide along said track as said barmember is moved into its angular position whereby said bar member issimultaneously moved laterally, angularly, and longitudiiially of saidtrack.

12. A supporting bracket comprising: a track; a slide movable along saidtrack; a link member pivotally connected to said slide and movablebetween a position longitudinally of said track directed toward one endthereof and an angular position either side thereof; a brace memberpivotally connected to said slide and movable between a positionlongitudinally of said track directed toward the other end of the trackand an angular position either side thereof; a strut member pivotallyconnected to said track at said other end and movable between a positionoverlying said brace and an angular position either side of said track,said strut member being pivotally connected to said brace; a bar memberpivotally connected to said link member and said strut member andmovable between a position longitudinally of said track and an angularposition either side thereof; the several pivotal connections betweensaid members adapted to define a common plane when said members extendlongitudinally of said track, said bar member adapted to be displacedlaterally offset either side of said plane to predetermine the directionof angular movement of said members, said link member adapted to swingits connection with said bar member laterally from said track, and saidbrace member adapted to draw said slide along said track as said barmember is moved into its angular position whereby said bar member issimultaneously moved laterally angularly and longitudinally of saidtrack; and dual cam elements incorporating corresponding ends of saidtrack and bar members adjacent said link member, for guiding said end ofthe bar member into longitudinal relation to said track, said camelements being disposed to determine either of said lateral offsetpositions of said bar member.

13. A supporting bracket, comprising: a track; a bar adapted to occupypositions longitudinally of said track offset at either side of thelongitudinal center thereof; a slide movable on said track; a linkpivotally connecting one end of said bar to said slide to displace saidend of the bar laterally from the side of said track corresponding tothe initial offset position of said bar; linkage means between saidtrack, bar, and slide for effecting lateral displacement greater thansaid link of the other end of said bar from either side of said track,said linkage means also operative to move said slide along said track,whereby said link and linkage means simultaneously move said barlaterally, longitudinally, and angularly relative to said track.

14. A supporting bracket, comprising: a track; a bar adapted to occupypositions longitudinally of said track ofiset at either side of thelongitudinal center thereof; a slide movable on said track; a linkpivotally connecting one end of said bar to said slide to displace saidend of the bar laterally from the side of said track corresponding tothe initial offset position of said bar; linkage means between saidtrack, bar, and slide for effecting lateral displacement greater thansaid link of the other end of said bar from either side of said track,said linkage means also operative to move said slide along said track,whereby said link and linkage means simultaneously move said barlaterally, longitudinally, and angularly relative to said track; andcoacting means at the link-connected end of said bar and correspondingend of said track for predetermining either laterally offset position ofsaid bar.

15. A supporting bracket, comprising: a track; a slide movable alongsaid track; a bar; a strut pivotally connected between said track andbar permitting movement of said bar between a position confronting saidtrack and an angular position; a brace operatively connected with saidstrut and slide to cause movement of said slide along said track as saidbar is moved between its confronting and angular positions; a linkoperatively connected between an end of said bar and said slide to causesaid end to describe a path directed away from said track as ReferencesCited in the file of this patent said bar is moved from its confrontingposition to its UNITED STATES PATENTS angular position, said slidedefining a cavity confronting said track; a friction shoe in said cavityengageable with 107L669 some Sept 1913 said track; a spring bearingagainst said shoe; and means 5 1'256839 some 1918 for adjusting theforce of said spring. 1356095 some 1920

